Home / 38,688.83-57,958.52-28,539.33

Finding the Fourth Proportional to 38,688.83, 57,958.52 and 28,539.33

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Solution

The fourth proportional to 38,688.83, 57,958.52 and 28,539.33 is: 42,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,688.83 : 57,958.52 = 28,539.33 : x
  2. Step 2: Convert to fraction form
    38,688.83/57,958.52 = 28,539.33/x
  3. Step 3: Cross multiply
    38,688.83x = 57,958.52 × 28,539.33
  4. Step 4: Simplify right side
    38,688.83x = 1,654,097,328.59
  5. Step 5: Solve for x
    x = 1,654,097,328.59/38,688.83
  6. Step 6: Final answer
    x = 42,753.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.